Stand



Patented Jan. 9, 1940 UNITED STATES PATENT o'FFlCE This inventionrelatesy to stands or similar supports, and more particularlytoadjustable stands` or racks for supporting books, magazines,newspapers, drawings, music compositions or the like 5. in a variety ofpositions conveniently accessible to the reader, whether hey isstanding, seated, or lying in bed.

The general object of the vinvention yis to provide a novel and improvedstand of ythe 'type described. f

A more specic object of the invention is the provision of a novel rackfor holding printed matter orv other articles of various sizes for readyAnother object ofv the invention is the provision of novel and improvedmeans 'for' adjusting the height of the rack from the iioor and alsolaterally from the supporting standard to permit its being employed innumerous ways as, for eX-.y

ample, by an orchestra conductor standing, a reader or musician sitting,or an invalid lying in bed.

In its preferred embodiment, the invention further contemplates theprovision of supporting means for the rack whereby it may befofset fromthe vertical standard and, although carrying considerable weight, willbe prevented from bending the standard or setting up excessive strainstherein.

Other objects and features of novelty will be apparent'frbm thefollowing specification lwhen read in connection with the accompanyingdraw'-` ing in which certain embodiments of my invention are illustratedby Way of example.

In the drawing:

Figure l'is a View in elevation of a stand eml bodying the principles ofmy invention,` a .por-

tion of the lower end being shown in vertical section;

Figure 2 is an enlarged detail view partly in elevation and partly insection of a lportion of the horizontal member of the stand;

Figure 3 is a vertical transverse sectionallview" of the` same membertaken on line 3-3 of Figure Novel retaining Figure .4 is an enlargeddetail sectional view taken on line 4-4 of Figure 1;

Figure 5 is a fragmentary view in elevation of a modified form of standin which is incorporated a modified form of raising means; 5

Figures 6 and '7 are horizontal sectional views of this alternativeembodiment taken on lines 6 6 and 'I-l respectively of Figure 5;

Figure S is a fragmentary View in elevation of an alternative form ofconnection between the 10 vertical standard and the cross arm; and

Figure 9 is a fragmentary view in elevation l.of an alternativearrangement for reinforcing the tripod legs.

AIn Figure l of the drawing, the rack upon 15 which the printed ,matteror other articles are held is indicated generally by the referencenumeral I0 and is supported upon the end 'of a horizontal arm IIextending from a vertical I standard I2, this standard being supportedupon 2n a tripod base I3.k

In order to adjust the position vof the rack I0 for `a-variety of uses,means are provided for extending the stand in a vertical direction toalter its height from the floor or supporting sur- 25 face, and othermeans are provided for rotating the rack I0 in a vertical plane andforlocking it in any ofa plurality of inclined positions. These means WillnoW be described in detail.

The standard I2 comprises a lower tubular 30 section I5 around Which isdisposed va ring I6 which is slidable upon the member I5 and providedwith means (not shown) for clamping it rigidly in selectedpositionsthereom Ears I1 are provided on the sleeve I6 to which arepivoted 35 the upper ends of the legs IB, three of these legsv beingindicated in the drawing `as spaced apart. It is obvious that additionallegs could be provided, but three is, of course, the minimum numberpossible for independently supporting the standard. Braces I9 arepivoted to an inter-- mediate portion of thelegs and are also pivotallyconnected to the ears 20 of a ring or sleeve 2| i carried by the lowerend of the tubular member I5. It Will be seenthat by adjusting thesleeve 45 orA ring I6 vertically upon the standard, the legs may bespread to any desired extent or the tripod base folded against the sidesof the standard.

' 11n Figure 9 the legs I8 `are provided at their ladditional weight tobe supported by the rack. u

An alternative reinforcing feature is illustrated in Figure 1 andcomprises a relatively large disc or plate 2B which is keyed at thelower end of the threaded rod 29 which is screwed int-o the openthreaded interior of the tubular member I5, thus providing a verticaladjustment for the disc which will be pressed iirmly against the iloorwhen heavy weights are to be carried by the stand.

The upper end of the tubular member I is also interiorly threaded forthe reception of the lower threaded end of the extension member 30. Thethreads 3l on this member preferably have a pitch of one inch, for afairly rapid extension ofl the telescoping standard I2. Into the upperend of the rod 3B there is ins-erted the narrowed shank 32 of thebracket 33 which has a laterally extending transversely flattened arm35. Upon the arm 35 there is adjustably disposed a connecting element orrider 36 vwhich is providedwith a rectangular slot for the closereception of this arm and also an upward extension provided with anopening for the reception of the flat vertically disposed cross arm II.

To provide a proper line contact for the armr II the upper slot of themember 35 is formed with a relatively sharp fulcrum edge 3l. The member36 is provided with holes which are adapted to be brought into registrywith certain of the series of holes formed in the arms 35 and II, inorder to adjust the fulcrum of the cross arm Il various distances fromthe axis of the standard I2. The rearwardly projecting short end of thearm II is provided with 'a series of notches 39 within which the upperend of the tie member 49 may be received. The rear end of the member d'is connected to the hook portion 4I of the ring 42 which is carried bythe tubular member I5 of the standard I2. The tie memberV lI may beextended and retracted as by means of the turnbuckle 43.

y It' the horizontal arm Il were pivoted directly above the top of thevertical standard I2, the forces acting on the standard would tend tobend itin a right hand or clockwise direction as viewed in Figure 1.However, by iulcruming the arm at a point offset toward the left, as inFigures l, 5 and 8, the top of the standard l2is constrained to bendtoward` the left and to tend to offset the general bowing oiI thestandard I2 in the opposite direction especially when an exceptionallyheavy weight is placed upon the rack ID. This, together with lthe slightpull toward the left by the tie memberA 40, tends to maintain thestandard I2 in a vertical position and adds to the strength of theentire Support.

An alternative connection betweenV the crossy I2 is illustrated instand, means are provided` for locking the arm II in positions directlyabove each one of the legs I8. This means comprises set screwsv t5 whichare disposed about the tubular member I5Y at intervals corresponding tothe intervals between the legs i8, these intervals being 120 in theembodiment illustrated. Holes or recesses 46 are provided in thethreaded portion of the shaft or rod 30 for the reception of these setscrews 45.

An alternative means for raising the rack Illv by then extension of thestandard I2 is illustrated in Figures 5,6 and 7 of the drawing. In thisembodiment the tubular member I5 of the standard is extended verticallyso that it is several inches higher than the corresponding member I5 inthe previously described embodiment. Upon this member I5 there isslidably disposed an elongated sleeve 5B carrying upon its ends therings 42 having lugs or ears 'il' which are connected with the notchedshort end of the arm II by means of the extensible tie members All. Tothe upper end of the elongated sleeve member 50is pinned the shank 32 ofthe bracket 33 which provides an adjustable fulcrum for the arm II in'the same way as described in connectionwith Figure l. It will be seenthat the arm II with its rack I0, the bracket 33, the

sleeve 5t and the connections 4t are all capable -of movingA verticallyas a unit and means are provided for electing this movement by aVstepby-step operation in order to adjust the position of the rack I'.The sleeve- 543 is provided upon each side'with ari-elongated slot 52through which project the oppositely directed trunnions 53 which arecarried by the member I5 and also the lower oppositely-directed squaredstuds 515. Upon the trunnions 53 are pivoted the arms ofA a yoke 55Vwhich forms part of the operating lever 56, the handle of which isslightly offset as at 5l to avoid one ofthe tie members lill duringoperation.

Upon the sleeve 5Ilfthere is provided a ratchet rack 58 having the teeth59- which are spaced apart a. distance corresponding tor the length ofthe separate steps by which the rack is to be raised. The yoke 55 isprovided'with a pawl 6I) which is pivoted thereto as at 5i. AV stopmember such as, for example, the ledge 62 is provided for preventing thepawl Ell-from moving downwardly too far. A lug 63 is provided on thepawl for manuallyl holding it in raised position during certainadjustments.

A retaining member 6511s provided having a handle 66 and the side arms6'!" which are adaptedto embrace the standard. The arms are providedwithelongated slots 68 of a width permitting them to snuglyv receive thesquared projections 54. The bight portion of the member 65- is providedwith a rigid retaining pawl IIJ whichisresiliently urged into engagementwith the teeth 5910i the ratchet rack 58 by means of the springs Ilhavingrtheir ends secured to projections l2. on the member 65` and tothe ends of. the squaredlugs 5dias at 13;

The operation of this raisingmeans will be readily apparent. Theretaining pawl 'lll supports the upper portion of the stand by engage'-ment with one of the teeth 59 as shown in Figure 5. The handle 55 in itsraised position permits the dog or pawl Sflto engage beneath one of theteeth 59and when the handle 56 is depressed the dog will raise the upperportion of the stand to the distance of approximately the length of oneof the teeth 59. During this lifting movement the member 65 will slidelaterally as the inclined face of the adjacent tooth 59 forces theretaining pawl 'l'outward against the influence of the springs ll. Atthe end of this movement the pawl 'I0 will snap beneath the tooth 59 andthe handle 56 when raised again will permit the dog 50 to-descend forengagement with the next tooth. When the rack is to be lowered the dog6I) isrevconnectedbymeans ofthe Wires |05 with-the leased fromengagement with any of the teeth59 by manipulation of the projection 62and the re'- taining member 65 is retracted manually and the upperportion of the stand lowered tothe desired position.

The rack I0 may be rotated uponthe arm II from the vertical positionindicated in Figure 1 of the drawing to a horizontal position and may beheld in intervening angularA adjustments. The,

ksocketr'IS provided on the rack I0. In order to secure the rack I0 inits adjusted angular positions the end 15 of the arm II is provided withseveral series of sockets or holes 80, 8|, 82 and 83 which are arrangedas clearly indicated in Figure 2 of the drawing. The sleeve member 11 isprovided With a series of set screws 84, 85, 86 and 81 which are adaptedto register successively with certain of the holes 80, 8|, 82 and 83. Inthe embodiment illustrated, the set screw 84 when in register with therst hole of the series 8| will hold the rack in its horizontal position.Then a slight rotation of the sleeve 11 above the horizontal, say aboutsix or seven degrees, will bring the set screw into register with therst hole of the series 8|. A further rotation `through the same selectedinterval will bring the set'screw 86 into register with the iirst holeof the series 82. Then the set screw 81 is brought into registry withthe first hole of the series 83 and after the next interval the firstset screw 84 reaches the second hole of the series 80 and the set screwsagain are successively brought into registry with succeeding holes inthe numbered series until the vertical position is reached. Of course,the intervals of adjustment may be varied by multiplying or dlminishingthe numbers of the holes in the several series. A mark is provided onthe sleeve or socket member 11 for indicating upon the scale 9| on themember 15 the set screw to be operated at any position of rotation ofthe member 11.

The set screws may be numbered I, 2, 3 and Ik and the indications on thescale correspondingly designated. Figure 3 shows the position of thedescribed arrangement when the set screw 84 is in engagement with therst hole of the series 80 at which point the set screw 85 shown is justapproaching the rst hole of the series 8I.

The rack I0 is provided with the central longitudinal strip which isconnected to the member 11 by means of the elements 18 and 19. Pivotedto the lower end of the member 95 at the spaced points 96 are the endsof the laterally extending base members or sills 91 of the rack.

Corresponding short members 98 are pivoted as tion of large sheets suchas drawings, blueprints or newspapers, the sills 91 are extendedlaterally f as shown and the elongated jointed side arms |02 areprovided which are connected by the jointed top member |03. Theintermediate horizontal strip 94 is also extended and the ends |04 areouter corners |06 of theextended rack.` Additional cross wires maybeprovided for further y support of large sheets and also for providingmeans for holding down such sheets.

In order to `retain books or magazines which may be supported on therack in the desired open positions the leaf .holding arrangement isvprovid'- ed and will now be described. Projections I|0 are secured totheI flanges |0I of the sills 91 through which'are adapted to extend thearms of the angular rods I I The other arms of these rodsare adapted tooverliethe printed matter carried by the rack and are provided at theirends with the rubber discs II2 which rest against the pages. Theposition of these leaf holders is adjusted and maintained by the setscrews I I3. In order that the hold-down discs maybe swung out ofposition as for the removal of books from the rack I0 notches oropenings` I I5 are provided in the anges I0| as clearly shown in Figure1 of The same `principles embodied in the stand which has been describedmay be applied to a derrick or jib crane constructed in a very similarmanner to the support disclosed herein.

It is understood that various changes and modifications may bemade inthe embodiments illustrated and described hereinwithout departing fromthe scope of my invention as defined by the following claims.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent is:

1. In a stand of the class described, in combination, a verticalstandard, a substantially horizontal arm fulcrumed intermediate itslength upon the upper end of said standard, at a point olset from Atheaxis of said standard in the line of said arm, the supported load beingcarried on the end of said standard which extends in the directionopposite the said offset, a tie member connecting the other end of saidarm with said the latter. f

2. In a stand of the class described, in combination, a verticallyadjustable standard, a bracket secured to the upper end of said standardhaving a horizontal lateral extension, a cross arm selectively fulcrumedupon said extension at one of a plurality of points of connection, saidcross arm being disposed in the same vertical plane as said extension,the supported load being carried by the end of said arm extending in thedirection opposite to' that of ksaid extension, an adjustable tie memberhaving its lower end connected with said standard at a pointintermediate the length of the same, and its upper end selectivelyattached to the other end o-f said cross arm at one of a plurality ofpoints of connection. 1

3. In a standof the class described, in combination, a verticalstandard, ra tripod'base for said standard, a bracket secured to theupper end of said standard having a horizontal lateral extension, across arm fulcrumed upon said exf tension, said cross arm being disposedin the same vertical `plane as said extension, one of the legs of thetripod base also lying in the said plane,

the supported load being carried by the end ofv saidarm extending inthedirectonlo'pposite to that of said extension, atiezmemberhavng its lowerend' connected with. said standardr at; a pointintermediate the lengthof the latter and its upper end attached to the other end of said crossarm.

4. In a stand of the classrdescribed, in combination, an extensibleAvertical, standard; comprising an internally threaded member and anexternally threaded member, onereceived withinthe other whereby thevertical height of the standard may be adjusted by relative rotation ofsaid. members, a` cross arm extending trans.-

versely, of# said` standard at thetop thereof, a bracket projectinglaterally from said upper member and provided with a fulcrum for saidcross arm oiTset with respect to the axis of` said standard, a tiemember connecting a projecting end of the crossfarm with an intermediatepoint on thefstandarcLa plurality of legsconstituting a base for saidstandard and extending radially from the lower onevof said members, andmeans for locking one of said members to the other only in rotatedpositions` wherein said Cross arm is above. one Y of said legs.

- WILLIAM P. LAMAR.

